John S. Koh
Patent agent, USPTO registration number 53943, status Active.
- Firm
- Marks & Clerk
- Location
- Ottawa, ON
- On the USPTO roster since
- before May 2006
John S. Koh is a USPTO-registered patent agent (registration number 53943) at Marks & Clerk, in Ottawa, ON. The registration is active on the current USPTO roster, and John S. Koh has been listed on the roster since before May 2006.
Marks & Clerk has 5 registered patent practitioners on the roster (5 patent agents), so John S. Koh works alongside 4 other registered practitioners there.
Ottawa, ON has 117 registered patent practitioners in all: 4 patent attorneys and 113 patent agents.
Other registered practitioners in Ottawa, ON
- Jason E. Davis — Patent agent, Reg. No. 65637, National Research Council of Canada M55 Room 29
- Thomas M. Deczky — Patent agent, Reg. No. 69411, Nokia
- Geoffrey Bernard Charles Dekleine — Patent agent, Reg. No. 50216, Borden Ladner Gervais LLP
- Angela C. Dewilton — Patent agent, Reg. No. 35763, deWilton Intellectual Property Inc.
- Timothee B. Doutriaux — Patent agent, Reg. No. 68579, Smart & Biggar LLP
- Scott C. Dybwad — Patent agent, Reg. No. 82547, Borden Ladner Gervais LLP
- Erin Engelhardt — Patent agent, Reg. No. 74956, Ovodenovo Inc.
- Luis P. Estable — Patent agent, Reg. No. 57893, PatentAgency.ca
All patent attorneys and agents in Ottawa, ON
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